adsp-bf539bbcz-5f8 Analog Devices, Inc., adsp-bf539bbcz-5f8 Datasheet - Page 50

• Manufacturer Part Number: adsp-bf539bbcz-5f8
• Description: Blackfin Embedded Processor
• Manufacturer: Analog Devices, Inc.

ADSP-BF539/ADSP-BF539F
OUTPUT DRIVE CURRENTS
The following figures show typical current-voltage characteris-
tics for the output drivers of the ADSP-BF539/ADSP-BF539F
processor. The curves represent the current drive capability of
the output drivers as a function of output voltage.
-
-
-
120
100
100
-
-
-
-
-
-
150
100
100
150
-
150
100
100
150
80
60
40
20
20
40
60
80
-
50
50
0
50
50
0
0
0
0
0
0.5
Figure 31. Drive Current A (High V
Figure 30. Drive Current A (Low V
Figure 32. Drive Current B (Low V
0.5
0.5
1.0
1.0
1.0
1.5
SOURCE VOL TAGE (V)
SOURCE VOLTAGE (V)
SOURCE VOLTAGE (V)
1.5
2.0
1.5
DDEXT
DDEXT
2.5
DDEXT
V
D D EX T
2.0
2.0
)
)
V
)
D D EX T
V
V
V
Rev. A | Page 50 of 60 | February 2008
V
DD E XT
DD E XT
D D EX T
= 2.75V
3.0
V
OL
OH
= 2.75V
V
= 3.0V
= 3.3V
2.5
= 3.6V
OL
2. 5
3.5
V
V
V
OH
O H
OL
3.0
4.0
3.0
-
-
-
100
200
150
100
100
150
200
-
-
-
-
-
-
-
-
80
60
40
20
20
40
60
80
50
50
80
60
40
20
20
40
60
0
0
0
0
0
0
0. 5
0. 5
Figure 33. Drive Current B (High V
Figure 35. Drive Current C (High V
Figure 34. Drive Current C (Low V
0.5
1.0
1.0
1.0
1.5
1.5
SOURCE VOLTAGE (V)
SOURCE VOLTAGE (V)
SOURCE VOLTAGE (V)
2.0
2.0
1.5
DDEXT
DDEXT
2.5
2.5
DDEXT
V
2.0
V
V
)
)
V
)
DD E XT
D DE XT
D DE XT
D DE XT
V
V
V
D D E XT
D D E XT
D DE XT
3. 0
3. 0
= 2.75V
= 3.0V
= 3.3V
= 3.6V
V
= 3.0V
= 3.3V
= 3.6V
OH
V
V
O H
2. 5
O L
3.5
3.5
V
V
OL
OH
V
OL
4.0
4.0
3.0